Library description
The barbell flat bench press is the most widely prescribed upper-body pressing movement and the standard against which other press variants are compared. Lying supine on a flat bench eliminates lower-body contribution, isolating the pressing muscles under load. The sternal (mid and lower) pectoralis major is the primary mover, with the clavicular head contributing as the bar moves off the chest, and the anterior deltoid and triceps acting as synergists throughout the press. The fixed barbell path demands bilateral coordination and allows heavy loading, making it effective for both strength and hypertrophy. Adequate shoulder mobility into horizontal abduction and external rotation is needed to touch the chest safely at the bottom of each rep.